Priming-cup for gasolene-engines.



L. G. NILSON.

PBIMING CUP FOR G'ASOLENE ENGINES.

APPLICATION FILED SEPT-18,1914.

Patented Apia 11, 1916.

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VvZi ATTORNEY WIT IVESSE 'run COLUMBIA PLANOGRAP" 20., WASHINU'IVEL u. c

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UNITED sTA'rEs LABS G. NILSON, 0F HOIBOKEN, NEW JERSEY.

PRIMING-CUP Fort GASOLENE-ENGINES.

To all whom it may concern:

Be it known that I, LABS G. NILSON, a citizen of the United States, residing in the city of Hoboken, county of Hudson, State of New Jersey, have invented certain new and useful Improvements in Priming-Cups for Gasolene-Engines, referencebeing, had

to the accompanying drawings, illustrative of one particular embodiment of my invention. I T

My invention consists of a priming cup 7 such as is used in gasolene engines, having a quick and ready releasable closure involving peculiar advantages as will hereinafter appear.

While features of my invention may be used in other embodiments or combinations,

in the preferred form of my invention I produce a cup adapted to hold a small quantity of gasolene to be dripped into the cylinder for the purpose of affording the initial charge of gas for starting, and com bined with said cup, a means of closing the. gasolene aperture in a secure manner, while the means for closure is at the same time simple and quickly operative, and above all things easily operated under the conditions of use of such articles. \Vhile all parts of oil cups or priming cups are'liable toqbe heated, and priming cups, when open, are where an exhaust of hot gases may occur, de-

' vices for this purpose heretofore have been diflicult to handle or liable to burn or otherwiseinjure the hands or, fingers when being operated. In the embodiment of mv invention such danger is eliminated and certain and quick action is made possible, whilethe closing of the same is equally quick and oertain and is efiected by such a quickmovement of the hand as to avoid the possibility A particular form of my invention is shown in the drawings in wh ch: 7

Figure 1 is a verticalsectlon of the cup showing lever in locked position. Fig. 2

l is a side elevation showing in dotted lines a modified base of'the cup also lever in locked position and dotted lines in unlocked position. Fig. 3 shows a diagram of the action' of the locking lever. Fig. 4: is a partvertical section at right angles to that shown ment to the engine cylinder; B shows in in Fig. 1. I 1 V In the particular form illustrated, A is a cup; A is the interior surface of the cup; B is the threaded end of the cup for attachdotted outline a niodified form of the attaching end of the cup, C is the locking lever;

I) is the closure or sealing endof thelever; E 1s a stop to-ho ld-the lever in locked 'posi-' t on; F is a stop or projection for cooperat1on with the; cup in the unlocking action of thelever; GG are retaining ears or clips to secure the spring links H to thelever' C;

'II H are pivot ends of the link H secure. 111g 1t to the body of the-cup A; J is arecess in the side of'the cup body thewalls J of which being adapted for engagement with thespring link H to limit its swinging motion. I

In Fig. 3thediagrammatic explanation of the action of this form of my invention, incl udes the swinging center X of the'locking link t1, and the position: Y of the pivotinJg center between the locking lever and the. locking llnk'when in locked position, and

the position ,Ywhen in unlocked position,

and Zthe efiective turning center ofthe closure end of the lever when locked. The center llnes of the lever are shown at c in locked, position, of in unlocked Qposition,v

while the center line of the spring link is shown at 72. in locked position, h" in unlocked position; and the arc of movement about the center Z is shown at z, andthe arcof movement of the'spring lever about its pivot parts as will be hereinafter described. The

line of centers of the swinging pivot of the locking links andthecenter about which the closure end of the lever C pivots is shown at a. v V

It will thus be seen that the device shown 1n..- the drawings comprises a priming cup and relief cock, in which the portion A X is shown. at w, as it'would take place ifv I not stretched owing to the-relation ofthe' forms with the interiorsurface A, a'cup adapted to receive a small quantity of gaso lane for use. toprime an eng1ne,'while the other end of the deviceis threadedas at'B so as to be screwed into a tapped hole in the cylinder Longitudinally through the cen ter is a hole K, to serve-as a vent for gases and also to conduct orflet the 'gasolene pass from thecup into the cylinder. As shown in Fig. 2 the end to secure tothe cylinder isturned at right'angles, the extremity B shown dotted being a threaded end to screw into the aperture in the cylinder when the hole inthe cylinder is horizontal, thereby keeping the cup portion in an upright position adaptedv to receive and hold gasolene.

The lever C is held to the cup proper by means of pivoted or swinging wire links HH, which are pivoted at H to the body" of the cup portion A, and at the other end are clamped to the lever C by the ears or clips G-G. In this manner the attachment permits swinging about the pivot H of the links and also permits the lever O to swing on the links at their upper end, trans- 'versely connecting thetwo arms HH, the

springwire being substantially in the form" of a staple with inturned ends for plvots.

On one side of the leverG is. the stop or. projection which engages the edge of the cup V-A when the lever, is thrown out of action or the valve released, so thatthe lower or closure end D of therlever moves in thearc of a circle with the fulcrum on the edge e of'the cup; Thus the end D ofthe lever will 1 clear the surface A, by making the cup surface substantiallyhemispherical. Onthe' opposite side of the lever G- from the projection F, is embodied an opposite projection E nearer to the closure end D, which is also adapted toengage the lip of Y the cup surface A, but on the opposite side from that engagedby the projection F.:

This projection E is adapted to limit theswinging movement of the lever C 1n its locking movement and cooperates in the looking with the locking linksH, which in the form shown are spring links; j

Referring to the diagram in Flg. 3, it

i will be seen-that the normallength between the centers of the spring links is thedistance between X and Y, w-hich len-gth is less thanthe" combined distance between centers Y, Z'Zand X. Therefore in the movement of the'lever G from the center line 0 into the verticalipositionon the center :line a, the pivot betweenthe spring linksand the lever will move through the arc e, and thereby lengthen the distance from the pivoting-center X, which causesja stretching of the sprin linksl-I. This stretching of the links H puts them in tension,'the maximum tension being reached as'the lever passes the center line a,and in its further movement toward position 0 the tension in the sprlng links is diminished,-and in position he the links are in less than maximum tension,

tending to force the closure in D of the lever G into its locked or sealingposition. The" lever is held with the links in position [2,

, by means of the stop Eonthe lever G, and? the tension in the spring links H will thus hold it in this position unless force is ekerted on the upper end oftheleversuflicient to overcome the additional strain of the tension in the links required to havethe center line of the lever'pa'ssthrough the center line 7 cat max mum'tension; If'force'is applied position, the tension in the spring linksH to release the lever, the moment it is moved past thel'center line a toward the releasing conveniently i better will'snap' it into completely unlocked position, and the momentum of the upper end of the lever, if given a sharp tap with the finger will cause itin the unlocking action "to fulcrum on the projection F, and take the position as shown by dotted lines in Fig. 1. In order to prevent the lever from falling farther'than as shown dotted in Fig. l, thewall J is fashioned to limit the unovement of the lower ends of the spring action of the end D will constantly tend to wear the periphery of the vent to an even seat. 7 Any undue wearwill furthermore not interfere. with the perfect closure, because the tension of the wirelinks will'accommodate any variation due to wear or manufacture to apredetermined degreesufiicient for any conditions of practical use.

The advantages of my invention will be better understoodm comparison with priming cups 'and'relief cocks when used, in

which aplugcock'is common practice and vhiclrrnust-have a tapered ground fit which is easily destroyed if the cock is forcibly turned. Such; cocksfstiek becausethe lubricant is burned'off when the flame is allowed toshoot through the relief cock forobserving the quality ofthe combustion in'the engme. When the lubricantis dried out owing to this heat the cock either leaks or is'forced into a sticking position, necessitating the use of wrench or pliers. This expedient results' in breaking 'ofi the-cockhandle or otherwise injuring the entire-device. 'When the cock sticks the contact is such as to cause heating of the'cock handle with the ,danger'of burning thefingers,which again requires the use of pliers so that the ordinary cock handle wh i'ch'has been adopted from other practice, is really unsuited for engine work. o y In my relief cock and priming cup, it

fwill be seen that n'osticki'ng can result from the heating of the closure end of the lever, alsothe constant wear c'an only produce a fit and more secure sealing of the vent, while the cock can always be operated by 'hand, because a quick touch'wi-ll immedlately release it and when 'released'it is in a position" adapted to'icool so as to be handied without danger when 'it'is desired to relock it.

In reality the sealing end Constitutes a ball valve engaging the edge of the vent hole, which in itself is a most simple, cheap and durable form of closure for this purose.

The other parts of my device are equally simple and therefore relatively cheap to manufacture, combining at the same time durability, with the advantages of convenience and operation, added to which replacement and repair of parts lspossible without difficulty. In the case of breakage or the loss of temper in the spring links, the

same may be readily replaced, although the entire device can be made so cheaply that v repairs would seldom be called for. V V

It will also be noted that when in closed position the lever C is in contact with the are of importance when compared with the ordinary relief cock when used, in which the handle is contiguous w1th the valve having a large contact With the body of the petcock, thereby causing the handle to become very hot, and, on the other hand, the hole in the valvebarrel does not always register accurately with the vent when new, and upon the wearing of the valve is likely to become worse, thereby causing a restriction or interference to the gases, and frequently a variation in vthe effectivervent on the different cylinders.

It will be noted that various embodiments in material, design and arrangement can be made in the practice of my invention which will still be within the scope of what I claim and desire to secure by Letters Patent. v A

I claim-- 1. A combined priming cup and petcock for gasolene engines, comprising a body por-' tion with means at one end for attachment to a cylinderand at theother end having a cup, a vent extending from the bottom of a the cup, an oscillating member having one end adapted to cover said vent, said member constituting a lever, a spring link attached between the ends of said lever and having pivotal engagement with the body portion of the device, for the purpose described; v-

pruning cup for gasolene engines comprlslng a cup w1th a vent 1n the bottom thereof, a movable member having one end adapted to engage the bottom of the cup to seal said vent, a spring link to support said movable member and to permit its swinging about one end of said link and means of at- 7 tachment of the link. to the cup, permitting the'turning thereof about the axis of an, I I

tachment, a stop on one side of said'movable member to arrest the swinging movement in one direction, whereby the movable member is brought to rest at a time, when the spring link is at less than maximum ten sion.

' In testimony whereof, have signed my name to thisspecification, 1n the presence of two subscribing witnesses, this 15, day of Sept, 1914. I

g V V I LARS G. NILSON.

Witnesses: y

i I H. D. DABNE Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents, 

